Award details

Dynamics of colonisation of chickens by Campylobacter jejuni

Reference	BB/C500852/1
Principal Investigator / Supervisor	Professor Duncan Maskell
Co-Investigators / Co-Supervisors	Dr Stephen Cornell, Professor Bryan Grenfell
Institution	University of Cambridge
Department	Veterinary Medicine
Funding type	Research
Value (£)	386,390
Status	Completed
Type	Research Grant
Start date	14/03/2005
End date	13/09/2008
Duration	42 months

Abstract

Campylobacter is the main cause of bacterial enteritis in the developed world. A major source of infection is considered to be the chicken and traditional methodologies for control, such as vaccines and competitive exclusion have little effect. Our studies, carried out with signature-tagged mutants have shown that the process of colonisation is not as efficient as expected, suggesting that there are specific choke points for colonisation. Preliminary data would suggest a range of selective processes which may be occurring during infection. We propose to investigate population dynamics of colonisation of chickens, both within and between birds. The project will use experimental infections with wild-type tagged mutants (WITS). These WITS will be tracked using a combination of quantitative PCR, and microarray analysis of the populations of Campylobacter within the avian intestinal tract, coupled with mathematical modelling, to study the growth and survival dynamics of C. jejuni within the host. Understanding of the processes of colonisation is central to the rational design of intervention strategies to reduce the reservoir of disease and the refinement of risk analyses of flock infection. (Joint with BB/C500936/1)

Summary

unavailable

Committee	Closed Committee - Agri-food (AF)
Research Topics	Animal Health, Microbial Food Safety, Microbiology
Research Priority	X – Research Priority information not available
Research Initiative	X - not in an Initiative
Funding Scheme	X – not Funded via a specific Funding Scheme

Associated awards:

BB/C500936/1 Dynamics of colonisation of chickens by Campylobacter jejuni

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